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(Q) Who invented the first vaccine for rabies ?

A) Louis Pasteur
B) Jonas Salk
C) Robert Koch
D) Paul Ehrlich

View Answer A) Louis Pasteur

Explanation : Louis Pasteur developed the first rabies vaccine in 1885, which was a major breakthrough in medical science.
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(Q) The first vaccine ever developed was for which disease ?

A) Smallpox
B) Polio
C) Measles
D) Rabies

View Answer A) Smallpox

Explanation : Edward Jenner developed the first vaccine for smallpox in 1796, which led to the eventual eradication of the disease.
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(Q) Which company launched the first smartphone, Simon Personal Communicator, in 1994 ?

A) Nokia
B) IBM
C) Apple
D) Samsung

View Answer B) IBM

Explanation : Designed by IBM and manufactured by Mitsubishi Electronics, the IBM Simon Personal Communicator, simply known as IBM Simon, was announced at the COMDEX trade show in Las Vegas on November 23, 1992. It was codenamed "Angler". Simon went on sale in 1994.
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(Q) When was the first artificial heart successfully implanted in a human ?

A) 1990
B) 2000
C) 2010
D) 1982

View Answer D) 1982

Explanation : In 1982, the first permanent artificial heart was transplanted into a 61-year-old patient named Barney Clark by surgeons at the University of Utah. Dr. Willem Kolff, who was mentioned earlier, led the team that worked on this artificial heart.
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(Q) When was the first successful test of the atomic bomb conducted ?

A) 1939
B) 1942
C) 1945
D) 1950

View Answer Answer

Explanation : The first successful test of an atomic bomb, code-named "Trinity," was conducted on July 16, 1945, in New Mexico, USA.
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(Q) Which of the following was the first cloned mammal ?

A) Dog
B) Monkey
C) Rabbit
D) Sheep

View Answer D) Sheep

Explanation : The first cloned mammal was a sheep named Dolly, cloned in 1996 by scientists in Scotland.
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(Q) When was the first successful heart transplant performed ?

A) 1973
B) 1967
C) 1981
D) 1990

View Answer B) 1967

Explanation : The first successful heart transplant was performed by Dr. Christiaan Barnard in South Africa on December 3, 1967.
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